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Zinc hydroxymethionine for prawns and preparation method thereof

A technology of zinc hydroxymethionine and hydroxymethionine, which is applied in the field of animal breeding, can solve the problems that have not yet been achieved, and achieve the effects of reducing zinc excretion, stabilizing the source, and protecting the environment

Inactive Publication Date: 2012-08-01
SOUTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there is no research report on amino acid chelated zinc suitable for shrimp farming

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Weigh 500g of zinc chloride (passed through a 200 mesh sieve), 1000g of hydroxymethionine, shake for 5 minutes with an ultrasonic cell disruptor, mix evenly in a mixer, and make the coefficient of variation of the obtained mixture ≤ 3%, and then use 0.2 mol / L NaOH to adjust the pH=7.0, and finally absorb, dry, and pulverize with zeolite powder, which is zinc hydroxymethionine of the present invention. The seedlings of Litopenaeus vannamei (initial weight: 0.69±0.007g) and Penaeus monodon (initial weight: 0.58±0.005g) were cultured in the indoor circulation culture system of three experimental sites in different regions. Zinc sulfate was added as the zinc source in the feed of the diet (addition amount: Zn: 30mg / kg feed), and zinc methionine (addition amount: Zn: 30mg / kg feed) was used as another control, and each control group had 4 replicates Add 75mg (zinc content is 20%) feed of the product of the present invention in every kg feed as experimental feed, the quantity...

Embodiment 2

[0011] Weigh 2000g of zinc chloride (through a 200 mesh sieve) and 4000g of hydroxymethionine, shake it with an ultrasonic cell breaker for 5 minutes, mix it evenly in a mixer, and make the coefficient of variation of the obtained mixture ≤ 3%, and then use 0.2 mol / L NaOH to adjust the pH=6.8, and finally absorb, dry, and pulverize with zeolite powder, which is zinc hydroxymethionine of the present invention. Field breeding experiments of Litopenaeus vannamei (initial weight: 0.59±0.006g) and Penaeus monodon (initial weight: 0.65±0.008g) were carried out in four places in different regions. The breeding experiments of prawns in four places were carried out in 4 ponds, each with an average area of ​​7 mu. The feed of the control group was supplemented with zinc sulfate as the zinc source (the addition amount was Zn: 20mg / kg feed), and zinc methionine (addition amount is Zn: 20mg / kg feed) as another contrast; With the product of the present invention that adds 50mg (zinc conten...

Embodiment 3

[0013] Weigh 1500g of zinc chloride (passed through a 200 mesh sieve), 3000g of hydroxymethionine, vibrate for 5 minutes with an ultrasonic cell disruptor, mix evenly in a mixer, and make the coefficient of variation of the obtained mixture ≤ 3%, and then use 0.2 mol / L NaOH to adjust the pH=7.0, and finally absorb, dry, and pulverize with zeolite powder, which is zinc hydroxymethionine of the present invention. Carry out field culture experiment of Chinese prawn and Penaeus lanceolata in three places in different regions, obtain the result similar to embodiment 1.

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PUM

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Abstract

The invention discloses zinc hydroxymethionine for prawns. The molecular formula of the zinc hydroxymethionine is Zn(C5H10O3S)2. A preparation method of the zinc hydroxymethionine comprises the following steps of: oscillating zinc chloride and hydroxymethionine by using an ultrasonic cell crusher for 5 minutes; uniformly mixing zinc chloride and hydroxymethionine in the ratio of 1:2; adjusting the pH to 6.8-7.2 by using 0.2 mol / L of NaOH; and adsorbing with zeolite powder, drying and smashing. Due to the adoption of the zinc hydroxymethionine, the using amount of zinc in a feed can be reduced by 50 percent, the biological utilization ratio of zinc is increased, zinc emission is reduced simultaneously, and environmental protection is facilitated; and the used raw materials have stable resources, low prices and simple production processes.

Description

technical field [0001] The invention relates to the technical field of animal breeding, in particular to zinc hydroxymethionine for prawns and a preparation method thereof. Background technique [0002] Shrimp is the species with the largest breeding area and the widest distribution among the famous, special and high-quality aquaculture products in my country, and it is also one of the largest aquatic products that are processed and exported to earn foreign exchange in China. At present, the culture of prawns in my country all uses artificial compound feed. The animal diet composed of natural feed often lacks one or several mineral elements, and needs to be added to the feed. Zinc is an essential trace element for animals to maintain life and production. Adding high doses of zinc in prawn feed can promote the growth of prawns, improve the immunity and disease resistance of prawns, but it has also caused a series of environmental pollution and food safety issues. , seriously...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C323/52C07C319/20A23K1/18A23K1/16
Inventor 林仕梅罗莉李芹毛述宏关勇
Owner SOUTHWEST UNIV
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